Sounds like the torque spike is breaking them loose. I'd love to be able to limit boost in 1st. I'm still running basically stock except for what's in my sig (170 whp), and I lose traction in 1st. I'd love a higher final drive because 1st is useless to me most of the time. One thing that did help just a bit was stiffer springs and better damped struts. It can help lessen the weight transfer off the front end. I don't know what I'm going to when I get the new motor and turbo installed, though. It's going to be spin city.